package com.mmdccj.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.mmdccj.reggie.entity.Dish;
import com.mmdccj.reggie.entity.DishFlavor;
import com.mmdccj.reggie.mapper.DishMapper;
import com.mmdccj.reggie.service.DishFlavorService;
import com.mmdccj.reggie.service.DishService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.mmdccj.reggie.dto.DishDto;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;
import java.util.stream.Collectors;

@Service
@Slf4j
public class DishServiceImpl extends ServiceImpl<DishMapper,Dish> implements DishService {
    @Autowired
    private DishFlavorService dishFlavorService;
    @Autowired
    private DishService dishService;
    @Override
    public DishDto getByIdWithFlavor(Long id) {
        Dish dish = this.getById(id);

        DishDto dishDto = new DishDto();
        BeanUtils.copyProperties(dish,dishDto);

        //查询当前菜品对应的口味信息，从dish_flavor表查询
        LambdaQueryWrapper<DishFlavor> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(DishFlavor::getDishId,dish.getId());
        List<DishFlavor> flavors = dishFlavorService.list(queryWrapper);
        dishDto.setFlavors(flavors);

        return dishDto;
    }
    @Override
    @Transactional
    public void updateWithFlavor(DishDto dishDto){
        this.updateById(dishDto);
        LambdaQueryWrapper<DishFlavor> queryWrapper = new LambdaQueryWrapper();
        queryWrapper.eq(DishFlavor::getDishId,dishDto.getId());
        dishFlavorService.remove(queryWrapper);
        List<DishFlavor> flavors = dishDto.getFlavors();
        flavors = flavors.stream().map((item)->{
            item.setDishId(dishDto.getId());
            return item;
        }).collect(Collectors.toList());
        dishFlavorService.saveBatch(flavors);
    }

    @Override
    @Transactional
    public boolean deleteDishAndDishFlavour(Long id) {
        LambdaQueryWrapper<Dish> dishQueryWrapper = new LambdaQueryWrapper<>();
        dishQueryWrapper.eq(Dish::getId,id);
        dishQueryWrapper.eq(Dish::getStatus,0);
        int count = dishService.count(dishQueryWrapper);
        if(count == 0){
            return false;
        }
        LambdaQueryWrapper<DishFlavor> dishFlavorQueryWrapper = new LambdaQueryWrapper<>();
        dishFlavorQueryWrapper.eq(DishFlavor::getDishId,id);
        Integer c = dishFlavorService.count(dishFlavorQueryWrapper);
        if(c != 0){
            dishFlavorService.remove(dishFlavorQueryWrapper);
        }
        Dish dish = new Dish();
        dish.setIsDeleted(1);
        dishService.update(dish,dishQueryWrapper);
        dishService.removeById(id);
        return true;
    }

    @Override
    public void updateDishStatus(Integer state, Long ids) {
        LambdaQueryWrapper<Dish> dishLambdaQueryWrapper = new LambdaQueryWrapper<>();
        dishLambdaQueryWrapper.eq(Dish::getId,ids);
        Dish dish = new Dish();
        dish.setStatus(state);
        dishService.update(dish,dishLambdaQueryWrapper);;
    }


    @Transactional
    public void saveWithFlavor(DishDto dishDto) {
        //保存菜品的基本信息到菜品表dish
        this.save(dishDto);

        Long dishId = dishDto.getId();//菜品id
        //菜品口味
        List<DishFlavor> flavors = dishDto.getFlavors();
        flavors = flavors.stream().map((item) -> {
            item.setDishId(dishId);
            return item;
        }).collect(Collectors.toList());

        //保存菜品口味数据到菜品口味表dish_flavor
        dishFlavorService.saveBatch(flavors);
    }
}

